Anrok, a global sales tax compliance platform for modern digital businesses, has raised $55 million in a Series C funding round led by Spark Capital, with participation from Sapphire Ventures and existing investors Khosla Ventures, Sequoia Capital, and Index Ventures.
The new round brings the company’s total funding to over $100 million, marking a major milestone in its mission to use AI-native automation to simplify and modernize global tax compliance.
Anrok serves more than 3,000 companies in over 100 countries, including leading innovators such as Anthropic, Cursor, and Notion. By combining AI automation with deep tax expertise, Anrok enables finance teams to save up to 90 percent of the time spent on compliance each month. Its platform provides comprehensive coverage across jurisdictions worldwide, ensuring companies remain compliant with the constantly shifting tax landscape while focusing on business growth.
The company supports a wide range of industries spanning AI, SaaS, e-commerce, marketplaces, and hardware. With over 40 percent of the companies on the Forbes AI 50 list relying on Anrok, the company has become a trusted provider for some of the most dynamic and fast-scaling technology firms.
Anrok’s analysis of more than 32 million monthly transactions highlights the growing complexity of sales tax compliance. As companies expand globally, the number of required filings can increase dramatically—from two annual filings for companies under $1 million in revenue to over 94 filings at $50 million or more, representing a 47-fold increase. Meanwhile, the percentage of revenue subject to taxation more than doubles from 20 percent to over 51 percent, further illustrating the operational challenges faced by growing enterprises.
Anrok’s technology uniquely combines AI-native automation with expert oversight to manage these complexities. The platform’s hybrid approach automates repetitive tasks such as document extraction and data processing, while human tax professionals review and verify results to ensure accuracy, audit readiness, and compliance integrity. The company’s leadership emphasizes that true scalability in tax management requires a balance between intelligent automation and expert validation.
How the funding will be used: The funding will be used to accelerate product innovation, strengthen partnerships, and expand the company’s research and development efforts in AI-driven tax compliance. Anrok plans to enhance its platform to meet the needs of the rapidly growing global digital economy and provide infrastructure capable of supporting businesses at every stage of growth.
KEY QUOTES:
“Knowing our tax compliance automatically scales with our billing allows us to focus on product development without diverting engineering resources to tax complexity.”
Connor Solimano, Business Operations and Strategy, Cursor
“Global sales tax compliance has been broken for too long – it’s one of those problems that gets exponentially harder as companies scale. Anrok has built the first solution that actually scales with modern businesses. They understand that commerce is global – you need to deeply understand local requirements to support modern commerce. We’re excited to back this team as they become essential infrastructure for global businesses.”
Yasmin Razavi, General Partner, Spark Capital
“Anrok powers compliance for some of the fastest growing AI companies worldwide. We’re building the tax infrastructure that can keep up with the pace and scale of their demand, and allow customers to focus on growing their business across borders.”
Michelle Valentine, CEO and Co-Founder, Anrok
